Facile preparation and performance of flexible sensors based on polyacrylamide/carboxymethylchitosan/tannin acid hydrogels

Hydrogel flexible sensors are gaining significant interest due to their distinct biocompatibility, flexibility, and unique features of being adjustable and injectable, but there are still problems of poor self‐healing performance and low conductivity in the current stage of research. In this work, a...

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Veröffentlicht in:Journal of polymer science (2020) 2024-11, Vol.62 (22), p.4953-4965
Hauptverfasser: Liu, Haochen, Huang, Bei, Ke, Guipin, Cao, Zheng, Cheng, Junfeng, Wang, Dong, Sun, Fangli, Ma, Wenzhong, Liu, Chunlin
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container_end_page 4965
container_issue 22
container_start_page 4953
container_title Journal of polymer science (2020)
container_volume 62
creator Liu, Haochen
Huang, Bei
Ke, Guipin
Cao, Zheng
Cheng, Junfeng
Wang, Dong
Sun, Fangli
Ma, Wenzhong
Liu, Chunlin
description Hydrogel flexible sensors are gaining significant interest due to their distinct biocompatibility, flexibility, and unique features of being adjustable and injectable, but there are still problems of poor self‐healing performance and low conductivity in the current stage of research. In this work, a prefabricated blending method was used to construct a dual‐network system using polyacrylamide (PAM), carboxymethyl chitosan (CMCS), and tannin acid (TA), and ferric ions (Fe3+) were introduced to apply ionically conductive organic hydrogels to flexible sensors. The PAM/CMCS‐Fe3+/TA hydrogels have good fatigue resistance and self‐healing properties, and their conductivity is as high as 6.42 S/m. This hydrogel‐based sensor for strain sensing purpose offers a lot of promise for flexible sensor applications since it can provide steady, dependable, and repeatable electrical impulses.
doi_str_mv 10.1002/pol.20240292
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source Wiley Online Library Journals Frontfile Complete
subjects Biocompatibility
Chitosan
Electric pulses
fatigue resistance
Fatigue strength
Ferric ions
Flexible components
flexible sensor
Healing
Hydrogels
ionic conductive hydrogel
Low conductivity
Polyacrylamide
self‐healing performance
Sensors
Tannins
title Facile preparation and performance of flexible sensors based on polyacrylamide/carboxymethylchitosan/tannin acid hydrogels
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